Time Temperature Indicator 50°F 1 Week 3M MonitorMark (9860D) 500 Pack
No Longer Available
3M™ MonitorMark™ 9860D Time Temperature Indicator with a threshold
temperature of 50°F (10°C) and a recording time for 1 week. Conditioning
temperature 41°F (5°C).
500 Per Pack
3M™ MonitorMark™ Time/Temperature Indicators are used to monitor the cold chain for
perishable food products, vaccines, blood and many other applications.
- The indicator is irreversible, providing a permanent record of
temperature exposure even after
temperatures return to acceptable levels.
- Placed inside secondary shipper boxes of temperature-sensitive products
during shipment and storage, the
indicators provide information to assist
in estimating time and temperature exposure.
- Product Construction: rectangular, flat laminate with layers of paper, film, adhesive and
- Blue compound run-out to estimate how long your product was above the
threshold temperature of 50°F (10°C) during a week.
- Removable film activation strip.
- Pressure-sensitive adhesive allows attachment to almost all clean, dry
- To prevent premature response, MonitorMarkTime Temperature Indicators
(including dual temperature indicators) must be conditioned prior to
removing the activation strip and activating the indicators. This insures
that the response chemical is solid and not liquid prior to removing the
activation strip. Condition indicators for a minimum of 2 hours in a
suitable refrigerator, freezer or chamber at or below 41°F (5°C).
Once conditioned and ready for use, the indicators can be maintained at any temperature below their critical temperature.
- The device is activated by simply pulling the side tab up and removing
the activation strip. This allows contact between the reservoir pad and the
end of the porous wick indicator track. At this point the indicator track
(visible under the viewing windows) is a plain white color.
- Upon exposure to temperatures exceeding the critical response
temperature, the chemical in the reservoir melts and begins to migrate along
the track. The blue coloring first appears at the left edge of the first
viewing window and gradually moves left to right to the end of the track.
The rate of the blue color movement is dependent on the temperature.
- Monitoring temperature exposure of temperature-sensitive products during
transportation and storage (for example, frozen or refrigerated foods,
drugs, vaccines, medical diagnostic kits, blood, blood products, and
- Typically placed inside insulated shipping boxes near the temperature
- The indicators monitor temperature exposure, not product quality. Their
purpose is to signal when product quality should be checked due to
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